Supporters of the BBC's digital radio station the Asian Network are planning one last push to highlight the station's plight before a final decision on its future which is expected as early as this month.

The Asian Network was earmarked for closure by BBC director general Mark Thompson along with sister digital station 6 Music in March last year.

But while the BBC Trust rejected the plans to shut 6 Music, it said it would consider a formal proposal to close the Asian Network on the condition that it "include a proposition for meeting the needs of the station's audience in different ways".

Eleven months later and staff are still waiting to find out when – or if – the station will close and what exactly will replace it.

Listeners are being encouraged on Facebook and Twitter to phone the BBC's complaints line to protest about its likely closure. A BBC spokesman said the corporation had nothing further to announce at this time.

There is growing frustration within the station about the continued uncertainty, particularly at a time when its audience has increased nearly 30% over the last 12 months. Its latest audience figures will be published on Thursday.

"The mood at the station is even worse over the last six months than when the closure was first mooted," said one station insider.

"The brand has taken a kicking, not just in the media establishment but inside the Asian community.

"People are sending their CVs out and expecting to be made redundant. All this at a time when its listening figures are going up."

Management has looked at a number of ways of replacing the Asian Network, which had an average weekly reach of 462,000 listeners in the third quarter of last year, up from 357,000 in the same period in 2009.

They include a network of five part-time local services on analogue and digital radio that broadcasts syndicated national Asian programmes, and an Asian programme unit making content for broadcast across the BBC's radio stations. The BBC is also thought to have looked at a shrunk-down national digital service.

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